Supervised re-ranking for visual search
First Claim
Patent Images
1. A computer-implemented method comprising:
- under control of one or more processors configured with executable instructions;
receiving a textual query;
obtaining an initial ranking result corresponding to the textual query, the initial ranking result including a plurality of images corresponding to the textual query;
representing the textual query using a visual context of the plurality of images, the visual context facilitating determining the visual re-ranking features including prior re-ranking features, contextual re-ranking features and pseudo relevance feedback features;
training, using a supervised training algorithm, a query-independent re-ranking model including a weighted linear combination of features based at least upon the visual re-ranking features of the plurality of images of the textual query to obtain a plurality of weights associated with the features of the weighted linear combination.
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Abstract
Supervised re-ranking for visual search may include re-ordering images that are returned in response to a text-based image search by exploiting visual information included in the images. In one example, supervised re-ranking for visual search may include receiving a textual query, obtaining an initial ranking result including a plurality of images corresponding to the textual query, and representing the textual query by a visual context of the plurality of images. A query-independent re-ranking model may be trained based on visual re-ranking features of the plurality of images of the textual query in accordance with a supervised training algorithm.
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Citations
20 Claims
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1. A computer-implemented method comprising:
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under control of one or more processors configured with executable instructions; receiving a textual query; obtaining an initial ranking result corresponding to the textual query, the initial ranking result including a plurality of images corresponding to the textual query; representing the textual query using a visual context of the plurality of images, the visual context facilitating determining the visual re-ranking features including prior re-ranking features, contextual re-ranking features and pseudo relevance feedback features; training, using a supervised training algorithm, a query-independent re-ranking model including a weighted linear combination of features based at least upon the visual re-ranking features of the plurality of images of the textual query to obtain a plurality of weights associated with the features of the weighted linear combination. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A computer-implemented method comprising:
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under control of one or more processors configured with executable instructions; receiving a textual query from a client; obtaining an initial ranking result related to the textual query, the initial ranking result including a plurality of images; representing the textual query in terms of a visual context of at least a subset of the plurality of images; re-ranking the initial ranking result based at least upon visual re-ranking features of the at least subset of the plurality of images and a query-independent re-ranking model, the visual re-ranking features being determined from the visual context, and the query-independent re-ranking model being trained according to a supervised algorithm using visual re-ranking features of a plurality of labeled images corresponding to one or more training textual queries. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. One or more computer-readable media storing computer-executable instructions that, when executed by one or more processors, cause the one or more processors to perform acts comprising:
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under control of one or more processors configured with executable instructions; obtaining an initial ranking result corresponding to a textual query, the initial ranking result including a plurality of images corresponding to the textual query; and re-ranking the initial ranking result based at least upon initial rankings of the plurality of images in the initial ranking result, a neighborhood structure of the plurality of images and pseudo relevance feedback of a predetermined number of top-ranked images in the initial ranking result. - View Dependent Claims (20)
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Specification